Switch all register list clients to the new MC*Iterator interface.

No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/RegAllocBasic.cpp b/llvm/lib/CodeGen/RegAllocBasic.cpp
index 6b01ccb3094..83dbbf2c1db 100644
--- a/llvm/lib/CodeGen/RegAllocBasic.cpp
+++ b/llvm/lib/CodeGen/RegAllocBasic.cpp
@@ -204,8 +204,8 @@ bool RABasic::spillInterferences(LiveInterval &VirtReg, unsigned PhysReg,
   // either the union or live intervals.
   unsigned NumInterferences = 0;
   // Collect interferences assigned to any alias of the physical register.
-  for (const uint16_t *asI = TRI->getOverlaps(PhysReg); *asI; ++asI) {
-    LiveIntervalUnion::Query &QAlias = query(VirtReg, *asI);
+  for (MCRegAliasIterator AI(PhysReg, TRI, true); AI.isValid(); ++AI) {
+    LiveIntervalUnion::Query &QAlias = query(VirtReg, *AI);
     NumInterferences += QAlias.collectInterferingVRegs();
     if (QAlias.seenUnspillableVReg()) {
       return false;
@@ -216,8 +216,8 @@ bool RABasic::spillInterferences(LiveInterval &VirtReg, unsigned PhysReg,
   assert(NumInterferences > 0 && "expect interference");
 
   // Spill each interfering vreg allocated to PhysReg or an alias.
-  for (const uint16_t *AliasI = TRI->getOverlaps(PhysReg); *AliasI; ++AliasI)
-    spillReg(VirtReg, *AliasI, SplitVRegs);
+  for (MCRegAliasIterator AI(PhysReg, TRI, true); AI.isValid(); ++AI)
+    spillReg(VirtReg, *AI, SplitVRegs);
   return true;
 }